Double Spiral, Double-Stem with a Threaded Shank (Nipple) Built to handle the toughest jobs. Heavy galvanized steel stems with very dense wire fill. Two layer of filament is twisted between four stem wires, with each layer perpendicular to the other. This is the toughest spiral brush with the highest density of filament.

California Proposition 65 WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling and Consult with your physician before using this product.